Still no word about releasing Cyan for 8.1.1 Dev Prev users. Wife just received Cyan+8.1.1 for her UK L620 (originally on O2, now on 3UK). Update was from standard 8.0 and has gone smoothly. My L620 CV, 8.1.1 Dev Prev does not get Cyan firmware update yet so looks like Microsoft have abandoned 000,s of Dev Prev users in favour of a few corporate users with Bitlocker enabled. Yes I know I could use NSRT to revert to 8.0 etc. etc. if I had access to Windows 7+ of course - which I don't! - and I could be bothered to go through all the hassle - which I can't. So the Dev Prev users who helped Microsoft by trial running 8.1.1 are still waiting for a proper rollout fix.